Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight
 
PerlMonks  

Re: Re: Re: Character Combinations

by chunlou (Curate)
on Aug 22, 2003 at 23:36 UTC ( #285958=note: print w/ replies, xml ) Need Help??


in reply to Re: Re: Character Combinations
in thread Character Combinations

You mean this?
use Algorithm::FastPermute; my @c = ('a'..'c'); for my $i (0..2) { for my $j (0..2) { my @c = @c[$i..$j] if $i <= $j; permute {print @c , "\n"} @c; } } __END__ a ab ba abc acb cab bac bca cba b bc cb c

Replies are listed 'Best First'.
Re: Re: Re: Re: Character Combinations
by Limbic~Region (Chancellor) on Aug 22, 2003 at 23:47 UTC
    chunlou,
    Considering that missed ca - no. It also doesn't work if you change
    my @c = ('a'..'c');
    to
    my @c = ('a'..'z');

    Permutations are not combinations.

    L~R

      Silly me. Should have consulted with this: Permutations and combinations.
      use Algorithm::FastPermute; sub combinations { return [] unless @_; my $first = shift; my @rest = combinations(@_); return @rest, map { [$first, @$_] } @rest; } for(combinations('a'..'c')){ my @c = @{$_}; permute {print @c , "\n"} @c; } __END__ c b bc cb a ac ca ab ba abc acb cab bac bca cba

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://285958]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (5)
As of 2016-06-25 13:33 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    My preferred method of making French fries (chips) is in a ...











    Results (325 votes). Check out past polls.